✨ Use pernickety when someone’s attention to detail turns into obsession—or when they just won’t let it go.
🔹 The editor was so pernickety that every comma had to be perfectly placed.
🔹 He’s too pernickety to enjoy camping—one bug and he's done.
Originally Scottish, from pernicket, likely an alteration of particular. It gained popularity in British English during the 19th century.